Maidhc O Casain
Na Bith Mo Riocht Tá!
The NPCs start with an attitude of 'Unfriendly.' DC for the diplomacy check to shift that to 'Indifferent' is 20 + CHA Modifier (Core Rules). Indifferent is actually pretty good . . . it allows the NPC to fill one of two rolls for the camp (guard or entertainer for Aerys, for example).
Each of them has some other events or actions that will shift them without a diplomacy check . . . Jask became friendly as soon as you freed him from his manacles and restored his equipment to him, for example. Each of them also has a 'mini-quest' that will both move them to Helpful and trigger them to grant you a small boon. All of these things will take a little teasing out; they won't just give 'em to you.
Until they become Helpful, their attitude can shift down as well as up due to events or handling by the PCs. Once Helpful, they can shift back down but it takes something more major to do it.
EDIT: Poor diplomacy checks will shift the NPC attitude down rather than up. Looks like you'll have your work cut out for you in a couple of cases.
Each of them has some other events or actions that will shift them without a diplomacy check . . . Jask became friendly as soon as you freed him from his manacles and restored his equipment to him, for example. Each of them also has a 'mini-quest' that will both move them to Helpful and trigger them to grant you a small boon. All of these things will take a little teasing out; they won't just give 'em to you.
Until they become Helpful, their attitude can shift down as well as up due to events or handling by the PCs. Once Helpful, they can shift back down but it takes something more major to do it.
EDIT: Poor diplomacy checks will shift the NPC attitude down rather than up. Looks like you'll have your work cut out for you in a couple of cases.